﻿<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Orthogonal Link Reshaping Tool</title>
<!-- Copyright 1998-2019 by Northwoods Software Corporation. -->
<meta charset="UTF-8">
<script src="../release/go.js"></script>
<script src="OrthogonalLinkReshapingTool.js"></script>
<script src="../assets/js/goSamples.js"></script>  <!-- this is only for the GoJS Samples framework -->
<script id="code">
  function init() {
    if (window.goSamples) goSamples();  // init for these samples -- you don't need to call this
    var $ = go.GraphObject.make;

    myDiagram =
      $(go.Diagram, "myDiagramDiv",
        {
          "undoManager.isEnabled": true,
          "linkReshapingTool": new OrthogonalLinkReshapingTool()
        });

    myDiagram.nodeTemplate =
      $(go.Node, "Auto",
        {
          width: 80,
          height: 50,
          locationSpot: go.Spot.Center
        },
        new go.Binding("location", "location", go.Point.parse).makeTwoWay(go.Point.stringify),
        $(go.Shape, { fill: "lightgray" }),
        $(go.TextBlock, { margin: 10 },
          new go.Binding("text", "key"))
      );

    myDiagram.linkTemplate =
      $(go.Link,
        {
          routing: go.Link.AvoidsNodes,
          reshapable: true,
          resegmentable: true
        },
        new go.Binding("points").makeTwoWay(),
        $(go.Shape, { strokeWidth: 2 })
      );

    myDiagram.model = new go.GraphLinksModel([
      { key: "Alpha", location: "0 0" },
      { key: "Beta", location: "200 0" },
      { key: "Gamma", location: "100 0" }
    ],[
      { from: "Alpha", to: "Beta" }
    ]);

    myDiagram.addDiagramListener("InitialLayoutCompleted", function(e) {
      // select the Link in order to show its two additional Adornments, for shifting the ends
      myDiagram.links.first().isSelected = true;
    });
  }

  function updateRouting() {
    var routing = getRadioValue("routing");
    var newRouting = (routing === "orthogonal") ? go.Link.Orthogonal : go.Link.AvoidsNodes;
    myDiagram.startTransaction("update routing");
    myDiagram.linkTemplate.routing = newRouting;
    myDiagram.links.each(function(l) {
      l.routing = newRouting;
    });
    myDiagram.commitTransaction("update routing");
  }

  function getRadioValue(name) {
    var radio = document.getElementsByName(name);
    for (var i = 0; i < radio.length; i++)
      if (radio[i].checked) return radio[i].value;
  }
</script>
</head>
<body onload="init()">
<div id="sample">
  <div id="myDiagramDiv" style="border: solid 1px black; width:100%; height:600px"></div>
  Routing:
        <input type="radio" name="routing" onclick="updateRouting()" value="orthogonal" />Orthogonal
        <input type="radio" name="routing" onclick="updateRouting()" value="avoidsnodes" checked="checked" />AvoidsNodes
  <p>
    This sample demonstrates the OrthogonalLinkReshapingTool that is defined in its own file, as <a href="OrthogonalLinkReshapingTool.js">OrthogonalLinkReshapingTool.js</a>.
    This tool allow users to shift the sections of orthogonal links in addition to resegmenting them.
    The Diagram's <a>ToolManager.linkReshapingTool</a> and link template's <a>Part.reshapable</a> properties must be set to use this tool.
    The <a>Link.resegmentable</a> property can still optionally be used.
  </p>
</div>
</body>
</html>